Patents by Inventor Richard E. Hardwick

Richard E. Hardwick has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Self centering drilling tool
    Patent number: 5649793
    Abstract: The present invention is a self centering drilling device and is more particularly concerned with the aspect of precise location for removal of material with various sizes of drill bits, using the same drill bit holder.
    Type: Grant
    Filed: May 25, 1995
    Date of Patent: July 22, 1997
    Inventors: Colin W. Ericksen, Richard E. Hardwick, Jeffrey S. Asher